Hmmm... that's strange because we live in zone 4B. I never grew Canna because I always read that it is a tropical plant that you have to lift in the fall and replant every spring. This is very strange. He is going to plant them in his mother's garden this upcoming weekend. I guess he doesn't realize this. I don't know when he bought the house either. It could have been this past spring and maybe the previous owner put them in the ground right before the house sold. IDK. I'll have to ask my neighbor.
So, if they are Canna, a few questions. Can I grow them in a pot? Can I keep them in an unheated raftered garage over the winter? Or is that too cold. My basement is always at 60 degrees year round. Is that too warm?
